定量计算机断层扫描和磁共振评估胸部出口的血管压缩
Ludo Schropp1, Evert-Jan Vonken2, Maarten L J Smits2
1Department of Vascular Surgery, University Medical Center Utrecht, Utrecht, the Netherlands.
概括
一种量化胸腔出口综合征 (TOS) 血管压缩的标准化方法是可靠的CT扫描,但不是MRI成像. 这一发现支持在未来对血管TOS的多中心研究中使用CT.
科学领域:
- 放射学 放射学是一门学科.
- 血管外科 血管外科
- 医疗成像医学成像
背景情况:
- 胸腔出口综合征 (TOS) 的诊断标准不一致.
- 缺乏标准化的成像协议和TOS报告.
- 胸口的血管压缩需要可靠的量化.
研究的目的:
- 评估一种标准化方法的可靠性,用于量化胸腔出口的血管压缩.
- 在动态计算机断层扫描 (CT) 和磁共振 (MR) 成像上比较该方法的可靠性.
主要方法:
- 开发了一种标准化的方法来测量关节下动脉和静脉区域的变化,在手臂绑架和引过程中使用大和小直径在角平面.
- 四名观察员独立分析了来自单一TOS专业中心的CT和MR扫描,使用定义的测量协议.
- 通过使用类内相关系数 (ICC) 来评估观察者间和观察者内部的可靠性.
主要成果:
- 分析了51个CT扫描和58个MRI扫描.
- 在CT (51%对16%) 和MR (64%对2%) 队列中,静脉压缩比动脉压缩更为普遍.
- CT测量表明观察者间和观察者内部的可靠性很好或很好 (ICCs 0.79-0.84).
- 对MR的测量显示观察者间和观察者内部可靠性较差 (ICCs 0.36-0.60).
结论:
- 对于胸部出口综合征的血管压缩来说,标准化的测量协议在CT成像中可靠.
- 同样的协议在应用到MRI成像时显示出不高的可靠性.
- 这种标准化CT协议被推用于对血管TOS进行前性多中心研究.
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